, two explosions in the white house andbarackobamaisinjured. obviously, a fake tweet. the a.p. said its account was hacked, but look at the impact right away on the dow jones, talking about in three minutes' time about 143 points down and then suddenly back up again as people realized this was a fake tweet and the a.p. made every effort to get the information out there that it had been fake and just by coincidence within about seven or eight minutes later the white house press briefing was set to begin and by tradition the a.p.'s reporter gets the first question and she had a chance to make news herself and tell everyone in the media what went on. here's how it played out. >> i want to say at the top that it appears a.p.'s twitter account has been hacked so anything that was just sent out about any incident at the white house is absolutely false and we'll be putting something out shortly to clarify if that hasn't happened already. >> thank you. the president is fine. i was just with him. >> and carl, we know that the fbi is investigating the situation. the secret service tells us it

deval patrick as well aspresidentobamawhowill speak at the end of the service and will bring those remarks to you live. as you know in any sort of in terms of healing it, the key is willing a will to heal. that is very much apparent here in boston. now onto the investigation, as carl said two individuals being sought by authorities on camera, videos can be waptured of these individuals around the time of the bombing, but authorities are also saying that the pictures of those individuals have not been released. so pictures are not the men that authorities are looking for. but there were multiple images that captured the explosion and the time leading up to it. that's what authorities are looking at frame by frame by frame. not just cell phone video, but surveillance video. we talked about the lord & taylor camera directly across the street from the second bombing. there were two other cameras at least that were supplied by a company called access communications. those cameras were high definition cameras. so these could be very high quality images, and we expect that authorities may

world and we think you get more foot trafficunderobamacareand my analyst has a favorable rating on the company and you take it on a stock-specific basis. >> are you excited by earnings season, jeff? >> not yet. this is the real onslaught. last week was really light on the earnings front and we'll have a better peg on that after the end of this week. >> for sure. >> jeff, nice to see you. on cnbc. >> from the markets to the growing world of etfs there is 1.5 trillion under management in the u.s. alone within the etf landscape and as etfs keep gaining ground they might make their way into your portfolio and bob pis any is here with his brand new etf portfolio tracker. bob? >> and i'm very proud of that, carl. we've spoken about exchange-traded funds and the role they might play in their portfolio and we might take this to another level and we'll show you how to use etfs to build a retirement portfolio so we brought in six independent etf experts including five financial advisers that use etfs exclusively to build three retirement portfolios that we are rolling out today. the site, re